More error checking for RSA pmeth.

ctrl.

Use cross reference table in ASN1_item_sign(), ASN1_item_verify() to eliminate
the need for algorithm specific code.

value of the passed output buffer is NULL.

The old method of using EVP_PKEY_size(pkey) isn't flexible enough to cover all
cases where the output length may depend on the operation or the parameters
associated with it.

Fix rsa_pkey_method.

Add digest size sanity checks.

need for a separate EVP_PKEY parameter in the other operation
initialization routines.

No method implementations yet.

of the EVP routines to public key algorithms.

line option to print out info.

initialize it. Initial support for application added public key ASN1.

key ASN1 handling through a single EVP_PKEY_ASN1_METHOD structure and move
the spaghetti algorithm specific code to a single ASN1 module for each
algorithm.